Antrihabitans spumae sp. nov., a novel bacterium isolated from stable foams formed in wastewater treatment plants and emended description of the genus Antrihabitans

• DOI: 10.1099/ijsem.0.006695
• Publication Date: 2025-02-28T11:17:44Z
• Authors: Jhon A. Suescún-S...; Raúl Riesco; Steve Petrovski; Jacques Soddell; Vartul Sangal; Amanda L. Jones; Fernando Sánchez-...; Robert J. Seviour; Michael Goodfellow; Martha E. Trujillo
• Keywords: Strain (injury)

Three strains, designated as J27, J71 T and J72, belonging to the genus Antrihabitans , were isolated from stable foams formed in activated sludge wastewater treatment plants (WWTPs) New South Wales, Australia. Phenotypic genomic analyses revealed that these strains belong Nocardiaceae family are closely related stalagmiti . However, distinct physiological characteristics, including overall relatedness indices, phylogenomic analysis, metabolic profiles MALDI-TOF MS (Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry), confirmed their status a new species. Ecologically, showed wide versatility, like enhanced membrane transport systems for amino acids, metals phosphate, well ability synthesize mycolic contributing hydrophobic nature involvement foam stabilization. Their adaptations likely provide competitive advantage WWTPs, where they persist nutrient-rich, metal-laden foam-stabilizing environments. The species did not present typical rod-coccus cycle, described previously defining characteristic of genus. Based on unique genomic, phenotypic ecological features, we propose name spumae sp. nov., with strain (JCM 34493 NCIMB 15450 ) type strain. Additional include J27 33914, 15449) J72 (NCIMB 15448).